[AG-TECH] Image quality

[George Estes]

Natalia,

Poor lighting can make even the best video system look bad.  Are you using florescent lighting?  Florescent lighting is not good for video, especially in rendering skin tones accurately.  But, add in the cheap florescent tubes found in most meeting room and poor placement of the fixtures and your inexpensive Sony camera and H.261 codec doesn't stand a chance in reproducing accurate color.  Two things to look at, is the quantity of light in the room sufficient and is the quality of light good.   If you're stuck with florescent lighting, as most of us are, try color balanced tubes for your fixtures.

George

At 09:43 AM 5/13/2004 +0200, you wrote:


>Hi all,
>
>
>We have noticed that image color in our videostream seems to have a lack of
>....accuracy to reality... i've seen other video streams that seem to
>reflect colors better and probably in a more real way. I was wondering where
>in the chain we can fix that. We are using a provisional Sony EVI D30
>camera, pinnacle pctv pro capture cards (i've tried as well with osprey 500,
>osprey 100 and hauppauge wintv go). Our display grahpics card is a nvidia
>quadro nvs and, finally, our display right now is composed of a brand new
>fujitsu TFT and a plasma TV.
>
>The codecs we are using are h261 (i think h263 cant be used with AG2.1.2 so
>far, is there any date about when will it be available?).
>
>Can anyone give us a piece of advice where we can improve our video quality?
>
>Kind regards and thank you in advance.
>Natalia.
>
>
>-----------------------------------
>Natalia Costas Lago
>email: natalia at cesga.es
>
>Centro de Supercomputacion de Galicia (CESGA)
>Avenida de Vigo, s/n Campus Sur
>15705 Santiago de Compostela - SPAIN
>Tel:   +34  981 56 98 10
>Fax:  +34  981 59 46 16
>http://www.cesga.es/